Kim, Dong Han; Yun, Chang Hyeon; Kim, Min Hwan; Naveen Kumar, Ch.; Yun, Bo Hee; Shin, Ji-Sun; An, Hyo Jin; Lee, Young Hun; Yun, Yong Don; Rim, Hong-Kun; Yoo, Min-Sang; Lee, Kyung-Tae; Lee, Yong Sup Bioorganic and Medicinal Chemistry Letters, 2012 , vol. 22, # 1 p. 700 - 705